Anti-corrosion properties of Fe-Ni metal anode for aluminium electrolysis

作     者：CAO Xiaozhou,WANG Zhaowen,HU Xianwei,SHI Zhongning,YAO Guangchun,and ZHANG Ting’an Metallurgy Source & Environmental Engineering Institute,School of Material & Metallurgy,Northeastern University,Shenyang 110004,China 

会议名称：《第十届中俄双边新材料新工艺研讨会》

会议日期：2009年

学科分类：080503[工学-材料加工工程] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 

基　　金：support from“National Natural Science Foundation of China (50674031)” “National Natural Science Foundation of China,Key Program(50834001)” 

关 键 词：aluminium electrolysis Fe-Ni alloy metal anode corrosion 

摘      要：Fe-Ni metal anode was fabricated by cold-press ***,Ni as the main raw materials in Ar *** corrosion behavior of Fe-Ni metal anode was studied by electrolysis *** electrolyte is consist of NaAlF(87 wt.%),LiF(3 wt.%),CaF (5 wt.%) and AlO(5 wt.%) which correspond to molecular ratio of *** results indicate that physicochemical dissolution progress occurs in the metal *** microstructure and composition of corrosion layer was analyzed by SEM and *** corrosion mechanism of the metal anode has also been suggested by the phase composition analyses of corrosion *** and FeO found in the oxide layer of anode and can prevent the molten cryolite from corroding further,and decrease the corrosion rate.